iPhone Google Data API HTTP协议，来自字符串的身份验证令牌 [英] iPhone Google Data API HTTP Protocol, Auth Token from string

问题描述

当提供凭据时，Google文档会返回长3行的字符串。这是格式
SID =东西...
LSID =东西...
认证=长授权令牌

如果我它存储在NSString中，在Auth后面调整到=的最佳功能是什么，并保留其余部分？

  NSData * returnedData = [NSURLConnection sendSynchronousRequest：request returningResponse：theResponse error：NULL]; 
 NSString * newDataString = [[NSString alloc] initWithData：returnedData encoding：NSUTF8StringEncoding]; 
 NSString * authToken = [newDataString ____________]; 
  

解决方案

我通过文档自己找出答案对于NSString：

有一个名为
- （NSArray *）的方法componentsSeparatedByCharactersInSet：（NSCharacterSet *）separator {

返回一个由NSCharacterSet分隔的不同字符串的数组。

有一个名为

的
的NSCharacterSet类方法

+（NSCharacterSet *）newLineCharacterSet {

将会将带有换行符的字符串拆分成小块，所以每行都会变成自己的对象。这是它是如何工作的：

  NSData * returnedData = [NSURLConnection sendSynchronousRequest：request returningResponse：nil error：NULL]; 
 NSString * newDataString = [[NSString alloc] initWithData：returnedData encoding：NSUTF8StringEncoding]; 
 NSCharacterSet * theCharacterSet = [NSCharacterSet newlineCharacterSet]; 
 NSArray * lineArray = [newDataString componentsSeparatedByCharactersInSet：theCharacterSet]; 
  

现在，对象lineArray包含不同的字符串，每个字符串都是新行的开始。 p>

不客气！

Google Docs returns a long 3 line string when supplied with credentials. This is the format SID=stuff... LSID=stuff... Auth=long authorization token

if I have it stored in NSString, what is the best function to trim all the way up to the "=" behind Auth, and keep the rest?

NSData *returnedData = [NSURLConnection sendSynchronousRequest:request returningResponse:theResponse error:NULL];
NSString *newDataString = [[NSString alloc]initWithData:returnedData encoding:NSUTF8StringEncoding];
NSString *authToken = [newDataString ____________];

解决方案

I figured out the answer on my own through the documentation for NSString:

there is a method called -(NSArray *)componentsSeparatedByCharactersInSet:(NSCharacterSet *)separator {

that gives back an array of different strings, separated by an NSCharacterSet.

There is a class method of NSCharacterSet called

+(NSCharacterSet *)newLineCharacterSet {

that will split up a string with the newline symbol into pieces, so each line becomes its own object. Here is how it works:

NSData *returnedData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:NULL];
NSString *newDataString = [[NSString alloc]initWithData:returnedData encoding:NSUTF8StringEncoding];
NSCharacterSet *theCharacterSet = [NSCharacterSet newlineCharacterSet];
NSArray *lineArray = [newDataString componentsSeparatedByCharactersInSet:theCharacterSet];

Now, the object lineArray contains different strings, each one is the start of a new line.

You're welcome!

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